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2022 Fiscal Year Final Research Report

Ferroptosis to adjust intracellular metabolism in an individual malignant bone and soft tissue sarcoma subtype

Research Project

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Project/Area Number 21K16670
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 56020:Orthopedics-related
Research InstitutionOsaka International Cancer Institute

Principal Investigator

Tamiya Hironari  地方独立行政法人大阪府立病院機構大阪国際がんセンター(研究所), その他部局等, リハビリテーション科 部長 (70811686)

Project Period (FY) 2021-04-01 – 2023-03-31
KeywordsSarcoma / Ferroptosis
Outline of Final Research Achievements

In the present study, ferroptosis to adjust intracellular metabolism in sarcoma was investigated. Interestingly, ferrous iron levels were not nicely correlated with ferroptosis sensitivity in several sarcoma cell lines, suggesting that iron detoxification varies according to each sarcoma cell line. Regulation of PGC1a through NF-kB and PRMT5 controls BNIP3L/NIX-mediated mitophagy, resulting in alteration of ferroptosis sensitivity. From this result, NF-kB and PRMT5 could be an indicator of ferroptosis sensitivity in sarcoma.

Free Research Field

Sarcoma

Academic Significance and Societal Importance of the Research Achievements

希少がんである肉腫においては薬物治療の開発が進みにくい。その中において鉄依存性細胞死であるferroptosisに着目した本研究は肉腫における新たな治療法の開発を目指そうとするものである。ミトコンドリア機能に重要なPGC1aの調整に関与することが分かったNF-kBやPRMT5は肉腫を含めたがんでactivityの亢進が報告されており、ferroptosis感受性の指標となる可能性が示されたことで、各組織型での個別化医療への発展も期待される。

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Published: 2024-01-30  

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